Q: iPhone 4s Battery Life?

Add to this, that my wife also has a 4GS and it is just as bad.  Similarily, we have an iPad2, which has always had amazing battery life.  We upgraded to 5.0.1 on the iPad2, and the battery on that drains quicker.  Still not as bad as the iPhone, but still it does drain faster than it did before.

My iPhone 4 on Verizon is worse for battery with 5.0 and worse still with 5.0.1. With notifications off, wifi and Bluetooth off, location services pretty much off, app store auto updates off, and all background apps off, I've gone from 100% to 89% in 12 mins. Reminds me of my old HTC Evo, but worse...

3dmac

So I confirmed and the 4s battery is 1420mAh (1.42A) from what you wrote this is this the max power input it will accept, correct?

If so that means:

the charger that came with the 4s will send a max of 1A to the phone when charging

the computer USB will send a max of 0.5A to the phone when charging

but the iPad could hit the max allowed by the phone of 1.42A, since it can put out 2.1A

To summarize, even if the 4s will only accept 1.42A max input, the iPad charger would reach this max input and would provide more amps to the phone than the 4s or when connected to the computer, since the 4s charger only outputs 1A thus it does not reach the max.

I said from the beginning........2 problems :Apple software and hardware dont match.

they have to fix the OS5 but dont expect more than 10% better. too many features for that 1450 mah batt.

this battery with this new hardware can not hold power.

Too late: Apple should put a 1900mah batt in . like some Droid smart phone.

that would cost only $4 in the production of each phones.

Sorry Apple this will be a flop. maybe they have sold milions of IP4S but they will loose millions of users at

the

same time.in a long run.

the IP5 will not be release next year..Apple will have to think that whe are not stupid........and the IP4S will be

remember for a $700. costly toy that no one

will buy used 6 month later . who will buy a used IP4S when the IP5 will go out? and the IP5 will not be sold

by million in the fist day.

Client have a good memory.

Can not do a recall for hardware , Apple will go bankrupt.

must see the fact.   apple release in a hurry a patch to calm down .........they will release maybe 2 more and

that

phone will never be like good smart phone with plenty of battery to spare.

my first iphone.....wowwwwwwwwwwww

In a round about way yes, The Ipad USB charger can "SUPPLY" the full battery required DRAW. That is IF you could charge the LIPO Direct to it's connector.

What needs to be understood is there is a difference in  SUPPLY Capabilities and Draw Current of a device.

As Noted the phone can be charged from a USB 2.0+ spec port (500mah) or better. The current limiting in the phone would not let it pull any more than the port is designed for. Having a charger capable of higher current rates is a more efficient charger and would run cooler and be safer. And the new mini usb 1.0ah charger never has gotten warm charging this phone. (Phone is not charging at or above the chargers limit, which would cause excess heat)

imsikotic wrote:

 

If it wasn't for the fact that folks with iPhone 4's that have updated to iOS5 were also experiencing battery problems, I would be convinced that the problem lies with the new antenna design and the software that switches it.  The constant switching of attenas would account for the battery drain issues and and the reports of people getting "jammed up" with their signal (iPhone shows good reception but nothing gets through data wise). This would also account for the phantom usage that people are reporting.  If your phone is in the middle of a neverending antenna switching loop while trying to complete a task such as fetch an email, that would certainly drive the usage up.  We all know that the iPhone is persistent about completing a task.  Just look what happens when an exchange account gets hung.  I know that I can get around 7 hours of usage  and a good 24-36 hours of standby as long as I stay connected to a wifi network but as soon as I'm out on 3G my batterly life goes right to **** in a handbasket and I'm lucky to get 4 hours of mixed usage. 

I fully agree with you. the battery drain problem is linked with 3G use when it's enable

and the new dual antena design.

Unfortunatly , since it's not possible te really switch OFF 3G on 4S,  the only way to do that

(for testing purpose of course) is to replace the SIM card by another one which is not 3G enabled

like a rechargeable one allowing only voice talk.

Then without changing anything else and with WIFI set to ON, you can give phone talks, surfing internet

and fetching you mail  while maintening  the % charge going down in a normal way and you can see

usage data not growing up when phone is on stanby.

Correct, but if a user used an ipad charger, or another charger not designed for the 4s (perhaps an aftermarket car charger) they could reach the max amp input of the 4s battery.

To note: I let my phone charge to 100% (through the computer) after upgrading yesterday to 5.0.1 and it just died 0%. I looked at the usage just before it died

Standby = 1 day 5 hours

Usage = 6 hours 30 minutes

The phone was connected to wifi most of the time, I also used the waze gps for approximately 1 hour.

Here's another post by me that no one will read:

Update to my post on page 311: Talk time.

I just finished a 45 minute conversation on my iPhone 4S. The power dropped from 30% to 20%. So that would be 12.5% over an full hour (assuming that can be extrapolated in the real world).

12.5% per hour of talking for 8 hours comes to: 100%!

SO, MAYBE I STAND CORRECTED!

It may be possible that it COULD last 8 "freaking" hours. 

My battery life may be better than what I thought.

I will have to test this tomorrow on a full charge and over a full hour (if I can find someone to talk to for that long. Maybe I should call my XGF and let her talk about herself for a couple of hours).

I have most location services turned off, including iCloud. But all the notifications on (I don't see why they'd reduce battery life).

I might post my findings tomorrow—for no one to read again.

boostnma wrote:

 

3dmac

 

So I confirmed and the 4s battery is 1420mAh (1.42A) from what you wrote this is this the max power input it will accept, correct?

 

If so that means:

the charger that came with the 4s will send a max of 1A to the phone when charging

the computer USB will send a max of 0.5A to the phone when charging

but the iPad could hit the max allowed by the phone of 1.42A, since it can put out 2.1A

 

To summarize, even if the 4s will only accept 1.42A max input, the iPad charger would reach this max input and would provide more amps to the phone than the 4s or when connected to the computer, since the 4s charger only outputs 1A thus it does not reach the max.

No the amps and amp/hrs are completely different. The 1 amp charger or even .5 will still charge the phone just at different rates. The battery is rated at 1420mAh which is the amount it can hold before it drains completely. It all depends on what the phone is doing at a given time and how much current it is drawing from the battery. The more amps the phone draws the faster the battery drains.

Here is the definition of mAh.

An ampere-hour is not a unit of energy. In a battery system, for example, accurate calculation of the energy delivered requires integration of the power delivered (product of instantaneous voltage and instantaneous current) over the discharge interval. Generally, the battery voltage varies during discharge; an average value may be used to approximate the integration of power.

In summary, the higher the mAh, the longer the battery will last.

Because the battery is rated at 1420mAh does not mean that a 1amp charger will not charge it past 1mAh. They are two different measurements.

Lol @ Apple copying Android on battery life.  Go buy a Nokia!

me at least i read your posts.

i don't really know if 5.0.1 fix has improved or not

but for me, problem will be very close to be solved

when i will see the usage data time not growing

and remaining low while the phone is doing nothing

ant yet both 3G and wifi are ON.

What is totally abnormal is the fact that power is wasted

while the phone is doing nothing not when you give

phone calls.

Please check and tell me about your statistics.

after a 100% full charge and phe phone unused for

1 hour, what is your usage data time ?

I wasn't really having any problems before the update, but today, I'm already down to 25% with just a few hours of music listening through headphones and a few texts.  Before, I could go 2-3 days before charges, but somehow, the update made it worse!!

Summary:

1. Few people have problem with battery since first day used Iphone 4S.

2. Few people have problem, after updated iOS 5.0.1

3. People which have oldest version Iphone, dont have problem battery on iOS 5.0

4. What I noticed, that after update on iphone 4S, to iOS 5.0.1 time on standby = 1,5h is longer, and its 3hours, but when I use normall Iphone (30 messages, and rest time 16 hours on standby, off all applications, notifications, services etc., brightness is on totally minimal) I dont 30% battery, so still dont see no improvement! Thanks Apple, maybe next update ?

Yes gelling. Exactly the same with my iPhone. Battery life was just fine with IOS5 (3 days without charging). After updating to 5.0.1, battery dies rapidly (approx. 10% per hour) without using any applications. What the **** is going on here? Although I didn't use my iPhone, the value of "Usage" and "Standby" are nearly the same.

Gelling: What about your values with "Usage" and "Standby". Are they shown correctly?

@ Apple: Any possibility downgrading to 5.0? It's high time to give us an solution for this f..... battery problem!

Or perhaps the additional casing for the next battery (of course free as an apology) because I read that some company did an overlay on the Iphone DualSIM 4S like just casing or return Iphone?